<span grid-action="export-excel" only-checked="false">
    {{vm.menuSaveAsExcelText}}
    <i class="iconfont icon-xls"></i>
</span>
<span grid-action="export-excel" only-checked="true">
    {{vm.menuSaveAsExcelForCheckedText}}
    <i class="iconfont icon-xls"></i>
</span>
